Research on topics related to educational leadership is evolving rapidly. A scoping review was conducted to investigate research on teacher leadership in Spain searching online databases (WoS, ÍnDICEs-CSIC, SCOPUS, Google Scholar) to identify papers published between 1990 and 2022, of which 39 were included. Through a thematic and contextual analysis, the review concludes that teacher leadership is an emerging topic in Spain; it has a much stronger empirical position and has expanded related to distributed leadership and leadership for social justice. Nevertheless, further research is needed to develop this area and make it more useful for academics, practitioners, and policymakers.